Thumbs up Help Still custom

Hey Guys,
I flashed Samykat rom then my device became custom and i didn't truly like the ROM
So, i decided to revert back to stock firmware and in download mode iam custom
when i go settings --> about --> status --> Device Status : Custom and Phone Number unknown both SIM1 &SIM2 what can i do to make my phone official again and make my warranty back
Tried Triangleaway
Guys your help is highly appreciated
@thecoreguy @Omkar$
My Devices:
*Sony Xperia J (ST26i)
My Contributions on XDA:
ROMs
Doomsday ROM for Xperia J
Illusion ROM for Xperia J
Mods & Ports
XPERIA 6.1.2.A.0.1 Home Port
Guides:
How to create your own stock based XPERIA ROM
Compile your own android kernel from source
Teams i work for:
Team Moonbreakers
Devices i develop for:
Sony XPERIA J
Sony XPERIA E
Samsung Galaxy Core